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Cardiovagal modulation upon postural change is altered in Huntington's disease

K J Bär1, M K Boettger, J Andrich

  • 1Department of Psychiatry, Friedrich-Schiller-University, Jena, Germany. Karl-Juergen.Baer@med.uni-jena.de

European Journal of Neurology
|May 20, 2008
PubMed

Insights

Huntington's disease (HD) patients show reduced cardiovagal modulation, indicating autonomic nervous system dysfunction. This may increase their risk for heart problems like arrhythmias and fainting.

Area of Science:

  • Cardiology
  • Neurology
  • Autonomic Function Testing

Background:

  • Cardiac autonomic nervous system (ANS) dysfunction is implicated in Huntington's disease (HD).
  • Both sympathetic and parasympathetic branches of the ANS may be affected in HD patients.

Purpose of the Study:

  • To investigate heart rate variability (HRV) patterns in mid-stage Huntington's disease patients.
  • To compare autonomic modulation between HD patients and healthy controls.

Main Methods:

  • Analysis of linear heart rate variability parameters.
  • Comparison of HRV metrics between Huntington's disease patients and a healthy cohort.

Main Results:

  • Mid-stage Huntington's disease patients exhibited a distinct pattern of linear heart rate variability.
  • A predominant reduction in cardiovagal modulation was observed in HD patients compared to healthy subjects.

Conclusions:

  • Reduced cardiovagal modulation in mid-stage HD may contribute to cardiovascular complications.
  • Huntington's disease patients might have increased susceptibility to syncopes and cardiac arrhythmias due to ANS dysfunction.
Abstract

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